Dave Pieper of St. Cloud State University collapses to the ground at the finish line of the NCAA Division II Regional Meet in Denver on Saturday, Nov. 5, 2011
Fort Collins senior defensive lineman Ryan Ballantine crouches on the field after his team's loss during a first-round playoff game on Thursday, Nov. 3, 2011.
Mike Montgomery, of San Diego, takes off down the slope during the best bike trick final at Vail's Golden Peak during the Teva Winter Mountain games on Saturday, Feb. 11, 2012.
Mike Montgomery, of San Diego, falls from his bike while flames burst during the best trick event at the Teva Winter Mountain Games on Saturday, Feb. 11, 2012.
Texas A&M's 4x400-meter relay team crosses the finish line while flashing the three-peat sign at the NCAA Outdoor Track and Field Championships on Friday, June 10, 2011.
University of Richmond football players rush out of the tunnel before their 2011 homecoming game.
Snowboarder Louie Vito sails during the men's superpipe final at the 2012 Winter X Games.
University of Richmond's Cedric Lindsey drives for the ball during the 2011 NCAA Tournament against the University of Kansas.
Denver Broncos wide receiver Brandon Lloyd momentarily grabs a pass.
Virginia Commonwealth University celebrates after winning its NCAA Southwest Regional game against Florida State University in the 2011 NCAA Tournament.
Occupy Denver protester Nicole Sisneros, left, is knocked to the ground by a police officer Monday, Dec. 19, 2011.
Riot police from the Colorado State Patrol push protesters out of Lincoln Park in Denver around 6:30 a.m. on Friday, Oct. 14, 2011, disbanding a tent city that had formed from the Occupy Denver protests.
Police and firefighters sweep through smoke and fire in Civic Center Park clearing Occupy Denver protesters on Monday, Dec. 19, 2011.
An Occupy Denver protester walks around a fire started by protesters as they were evicted Monday, Dec. 19, 2011.
A series of thunderstorms passes through Denver on Wednesday, July 13, 2011.
A concertgoer wearing a cowboy hat digs for his ticket to present to an event attendant at a show featuring Tim McGraw.
Dave Pieper of St. Cloud State University collapses to the ground at the finish line of the NCAA Division II Regional Meet in Denver on Saturday, Nov. 5, 2011Fort Collins senior defensive lineman Ryan Ballantine crouches on the field after his team's loss during a first-round playoff game on Thursday, Nov. 3, 2011.Mike Montgomery, of San Diego, takes off down the slope during the best bike trick final at Vail's Golden Peak during the Teva Winter Mountain games on Saturday, Feb. 11, 2012.Mike Montgomery, of San Diego, falls from his bike while flames burst during the best trick event at the Teva Winter Mountain Games on Saturday, Feb. 11, 2012.Texas A&M's 4x400-meter relay team crosses the finish line while flashing the three-peat sign at the NCAA Outdoor Track and Field Championships on Friday, June 10, 2011.University of Richmond football players rush out of the tunnel before their 2011 homecoming game.Snowboarder Louie Vito sails during the men's superpipe final at the 2012 Winter X Games.University of Richmond's Cedric Lindsey drives for the ball during the 2011 NCAA Tournament against the University of Kansas.Denver Broncos wide receiver Brandon Lloyd momentarily grabs a pass.Virginia Commonwealth University celebrates after winning its NCAA Southwest Regional game against Florida State University in the 2011 NCAA Tournament.Occupy Denver protester Nicole Sisneros, left, is knocked to the ground by a police officer Monday, Dec. 19, 2011.Riot police from the Colorado State Patrol push protesters out of Lincoln Park in Denver around 6:30 a.m. on Friday, Oct. 14, 2011, disbanding a tent city that had formed from the Occupy Denver protests.Police and firefighters sweep through smoke and fire in Civic Center Park clearing Occupy Denver protesters on Monday, Dec. 19, 2011.An Occupy Denver protester walks around a fire started by protesters as they were evicted Monday, Dec. 19, 2011.A series of thunderstorms passes through Denver on Wednesday, July 13, 2011.A concertgoer wearing a cowboy hat digs for his ticket to present to an event attendant at a show featuring Tim McGraw.